| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 1780 | 1 | CoC |
| 0 | Normal activity |
| 1 | Symptomatic and ambulatory |
| 2 | Ambulatory more than 50 percent of the time, occasionally needs assistance |
| 3 | Ambulatory less than 50 percent of the time, nursing care needed |
| 4 | Bedridden, may require hospitalization |
| 8 | Not applicable, dead |
| 9 | Unknown or unspecified |